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Reports calls to the regular expression methods (such as <code>matches()</code> or <code>split()</code>)
of <code>java.lang.String</code> using constant arguments.
<p>
  Such calls may be profitably replaced with a <code>private static final Pattern</code> field
  so that the regular expression does not have to be compiled each time it is used.
</p>
<p><b>Example:</b></p>
<pre><code>
  text.replaceAll("abc", replacement);
</code></pre>
<p>After the quick-fix is applied:</p>
<pre><code>
  private static final Pattern ABC = Pattern.compile("abc", Pattern.LITERAL);
  ABC.matcher(text).replaceAll(Matcher.quoteReplacement(replacement));
</code></pre>
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